Valve



FIG. 1 is a front elevational view of a valve showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view taken from the front, top and right side thereof; and

FIG. 8 is a perspective view taken from the rear, top and left side thereof. 

The ornamental design for a valve, as shown and described. 